Old City

The Science History Institute in Philadelphia's Old City is hosting an exhibit on the history of fireworks, showcasing items like canisters, flasks, and 19th-century recipe books. The display traces fireworks' evolution from ancient Chinese bamboo tubes to modern chemistry, highlighting Italian immigrants' contributions and the use of metal salts to create colors. The exhibit runs through July 31, 2027, as part of the city's 250th anniversary celebration of the Declaration of Independence.